Pique declared his intention to quit international football after the 2018 World Cup following a World Cup qualifier against Albania in October 2016, saying he was tired of repeated criticism from supporters and the media, and that he wished "to be left in peace".
The outspoken Barcelona-born defender has never enjoyed the same rapport with Spain supporters as his international team mates, and he has often been booed at games due to his repeated jibes at Real Madrid and his support for a referendum on Catalan independence.
Pique, 31, did not confirm his departure immediately after Spain were eliminated by hosts Russia in the last 16 of the World Cup, but he said he had already told Luis Enrique -- who succeeded Julen Lopetegui last month as national team coach -- that he would not be returning to the set-up.
"I spoke to Luis Enrique a few days ago. He called me and I told him the decision was taken a long time ago and that I had thought about it carefully," the defender told a news conference on Saturday ahead of Sunday's Spanish Super Cup game against Sevilla.
"It was a beautiful time with the national team in which I had the chance to win the World Cup and the European Championship. Now I want to focus on Barca," he said. "I have a few years left here and I'm going to enjoy them a lot."
Pique played 102 times for Spain and represented his country at two European Championships and three World Cups, helping his country win their only world crown in 2010 and triumphing at Euro 2012 two years later.
(Reporting by Richard Martin,; Editing by Neville Dalton)
